Abstract: An improved exhaust gas deflector for the top of a vertical tubular truck exhaust stack, the deflector being formed of a generally horizontal base plate having an opening therethrough, a vertical tubular member secured to the base plate coincident with the opening therein, the lower end of the tubular member being attached to the top of the truck exhaust stack, a pair of spaced apart side panels affixed to the base plate, an air scoop plate affixed adjacent the front edge of the base plate and the side edges thereof affixed to the side panels, a portion of the air scoop plate extending over and above a portion of the tubular member, the air scoop plate being inclined downwardly, and an upwardly inclined deflector plate affixed to the base plate rear edge and the side edges thereof being affixed to the side panels, so that as the truck having the exhaust gas deflector thereon moves, air passes through the deflector and is commingled with the exhaust gas which is deflected in an upward direction.

Abstract: An exhaust gas deflector for the top of a vertical tubular truck exhaust stack, the deflector being formed of a generally horizontal base plate having an opening therethrough, a vertical tubular pipe portion secured to the base plate coincident with the opening therein, the lower end of the tubular pipe portion being attached to the top of the truck exhaust stack, a pair of spaced apart side panels affixed to the base plate, an air scoop plate affixed to the front edge of the base plate and the side edges thereof affixed to the side panels, the air scoop plate being inclined downwardly and an upwardly inclined deflector plate affixed to the base plate rear edge and the side edges thereof being affixed to the side panels, so that as the truck having the exhaust gas deflector thereon moves, air passes through the deflector and is comingled with the exhaust gas which is deflected in an upward direction.